ICD-10-CM>J00-J99>J40-J4B>J44>J44.1J44.1Chronic obstructive pulmonary disease with (acute) exacerbationBillable/Specific Copy Code Copy DescriptionApplicable ToDecompensated COPDDecompensated COPD with (acute) exacerbationType 2 Excludeschronic obstructive pulmonary disease [COPD] with acute bronchitis (J44.0)lung diseases due to external agents (J60-J70)